Name: Multi-canonical methods and lattice field theory
Start: 2025-12-01T08:30:00+01:00
End: 2025-12-05T19:00:00+01:00
Location: ECT*

Multi-canonical methods and lattice field theory

from Monday, December 1, 2025 (8:30 AM) to Friday, December 5, 2025 (7:00 PM)

Monday, December 1, 2025

8:30 AM Welcome: Registration
Registration
8:30 AM - 9:00 AM
Room: Aula Renzo Leonardi
9:00 AM Talks
9:00 AM - 10:20 AM
Room: Aula Renzo Leonardi
Contributions

9:00 AM Director's Welcome

9:20 AM Introduction - Gurtej Kanwar (University of Edinburgh)

9:40 AM Logarithmic linear relaxation method for non-Abelian gauge theories at finite temperature - David Mason (Jülich Forschungszentrum)
10:20 AM Coffee break
Coffee break
10:20 AM - 11:00 AM
Room: Aula Renzo Leonardi
11:00 AM Talks
11:00 AM - 12:20 PM
Room: Aula Renzo Leonardi
Contributions

11:00 AM The density of states in finite-temperature Sp(4) Yang-Mills theory - Fabian Zierler (Technical University of Munich)

11:40 AM Applying normalising-flow-based density of states to 2D U(1) lattice gauge theory with a $\theta$-term - Simran Singh (University of Bonn)
12:20 PM Lunch
Lunch
12:20 PM - 2:00 PM
Room: Aula Renzo Leonardi
2:00 PM Talks
2:00 PM - 3:20 PM
Room: Aula Renzo Leonardi
Contributions

2:00 PM A canonical formulation of lattice QCD with physical quark masses - Ludovica Pirelli (University of Wuppertal)

2:40 PM Expanded Ensemble Method for Bubble Nucleation - Jaakko Hällfors (University of Helsinki)
3:20 PM Coffee break
Coffee break
3:20 PM - 4:00 PM
Room: Aula Renzo Leonardi

4:00 PM Talks: Discussion
Discussion
4:00 PM - 5:00 PM
Room: Aula Renzo Leonardi
Tuesday, December 2, 2025
9:00 AM Talks
9:00 AM - 10:20 AM
Room: Aula Renzo Leonardi
Contributions

9:00 AM Variance reduction with machine-learned flows - Fernando Romero-Lopez (Uni Bern)

9:40 AM Tackling the Signal to Noise problem with Stochastic Automatic Differentiation - Guilherme Catumba (University Milano-Bicocca)
10:20 AM Coffee break
Coffee break
10:20 AM - 11:00 AM
Room: Aula Renzo Leonardi
11:00 AM Talks
11:00 AM - 12:20 PM
Room: Aula Renzo Leonardi
Contributions

11:00 AM Results for fermionic observables by using a two-level sampling method - Jacob Finkenrath

11:40 AM The QCD Sphaleron Rate: A First-Principles Determination from Inverse-Problem Techniques - Roberto Dionisio (Università di Pisa / INFN sez. di Pisa)
12:20 PM Lunch
Lunch
12:20 PM - 2:00 PM
Room: Aula Renzo Leonardi
2:00 PM Talks
2:00 PM - 3:20 PM
Room: Aula Renzo Leonardi
Contributions

2:00 PM The smeared R-ratio in isoQCD from first-principles lattice simulations - Francesca Margari

2:40 PM Implications of Yukawa interactions in scalar sector - Muhammad Saad (LUMS)
3:20 PM Coffee break
Coffee break
3:20 PM - 4:00 PM
Room: Aula Renzo Leonardi

4:00 PM Talks: Discussion
Discussion
4:00 PM - 5:00 PM
Room: Aula Renzo Leonardi
Wednesday, December 3, 2025
9:00 AM Talks
9:00 AM - 10:20 AM
Room: Aula Renzo Leonardi
Contributions

9:00 AM Energy-based diffusion models for complex actions - Gert Aarts (Swansea University and ECT*)

9:40 AM Diffusion models for U(2) and SU(2) lattice field theory - Thomas Ranner (TU Wien)
10:20 AM Coffee break
Coffee break
10:20 AM - 11:00 AM
Room: Aula Renzo Leonardi
11:00 AM Talks
11:00 AM - 12:20 PM
Room: Aula Renzo Leonardi
Contributions

11:00 AM Equivariant Diffusion-based Sampling for Lattice Field Theory - Octavio Vega (University of Illinois Urbana-Champaign)

11:40 AM Machine learning a fixed-point action for the O(3) non-linear sigma-model in d=2 - Liane Backfried (Universität Bern)
12:20 PM Lunch
Lunch
12:20 PM - 2:00 PM
Room: Aula Renzo Leonardi
2:00 PM Talks
2:00 PM - 3:20 PM
Room: Aula Renzo Leonardi
Contributions

2:00 PM Continuous normalizing flows for the quantum rotor - Miranda C.N. Cheng (U. Amsterdam and Academia Sinica, Taiwan)

2:40 PM Revisiting collective-variable guided sampling with normalizing flows - Marylou Gabrié
3:20 PM Coffee break
Coffee break
3:20 PM - 4:00 PM
Room: Aula Renzo Leonardi

4:00 PM Talks: Discussion
Discussion
4:00 PM - 5:00 PM
Room: Aula Renzo Leonardi
Thursday, December 4, 2025
9:00 AM Talks
9:00 AM - 10:20 AM
Room: Aula Renzo Leonardi
Contributions

9:00 AM Nested sampling for gauge theories - Urs Wenger

9:40 AM Crafting Analytic Normalizing Flows - Mathis Gerdes (University of Amsterdam)
10:20 AM Coffee break
Coffee break
10:20 AM - 11:00 AM
Room: Aula Renzo Leonardi
11:00 AM Talks
11:00 AM - 12:20 PM
Room: Aula Renzo Leonardi
Contributions

11:00 AM Enhanced sampling methods to mitigate topological freezing - Timo Eichhorn (University of Wuppertal)

11:40 AM Fighting topological freezing in SU($N$) Yang--Mills theories with the PTBC algorithm - Andrea Giorgieri (University of Pisa)
12:20 PM Lunch
Lunch
12:20 PM - 2:00 PM
Room: Aula Renzo Leonardi
2:00 PM Talks
2:00 PM - 3:20 PM
Room: Aula Renzo Leonardi
Contributions

2:00 PM Exploration of parallel tempering to reduce topological freezing - Victor Manuel Granados Pinto (Universität Bern)

2:40 PM Accelerating Parallel Tempering with Neural Transports - Saifuddin Syed (University of British Columbia)
3:20 PM Coffee break
Coffee break
3:20 PM - 4:00 PM
Room: Aula Renzo Leonardi
4:00 PM Talks
4:00 PM - 4:40 PM
Room: Aula Renzo Leonardi
Contributions

4:00 PM Machine-Learned Density of States in Multicanonical Simulations - KWAME APPIAH (GHANA ATOMIC ENERGY COMMISSION)
4:40 PM Talks: Discussion
Discussion
4:40 PM - 5:30 PM
Room: Aula Renzo Leonardi

8:00 PM Social dinner
Social dinner
8:00 PM - 10:00 PM
Friday, December 5, 2025
9:00 AM Talks
9:00 AM - 10:20 AM
Room: Aula Renzo Leonardi
Contributions

9:00 AM Free energy difference with Jarzynski equality: Interfaces in the lattice phi^4 theory - Lorenzo Verzichelli (Università di Torino, INFN sezione di Torino)

9:40 AM A scalable flow-based approach to mitigate topological freezing - Elia Cellini (University of Edinburgh)
10:20 AM Coffee break
Coffee break
10:20 AM - 11:00 AM
Room: Aula Renzo Leonardi
11:00 AM Talks
11:00 AM - 12:20 PM
Room: Aula Renzo Leonardi
Contributions

11:00 AM SU(N) eigenstates with Physics-Informed Neural Networks - Simone Romiti (Uni-Bern)

11:40 AM Monte Carlo methods for data mining in complex systems. - Michele Caselle (Università di Torino)
12:20 PM Lunch
Lunch
12:20 PM - 2:00 PM
Room: Aula Renzo Leonardi

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